Ultrasonic Sensor

Ultrasonic is a low cost sensor. it is used for distance measurement. Its working principle is similar to that of SONAR(Sound Navigation and Ranging). The sensor provides precise,Stable non-contact distance measurements from about 2cm to 4 meters with very high accuracy. It can be used for level detection, speed and relative distances, burglar alarms etc.

Features:

Professional EMI/RFI Complaint PCB Layout Design for Noise Reduction

Range: 2 cm to 4 m

Accurate and Stable range data

Data loss in Error zone eliminated

Modulation at 40 KHz

Mounting holes provided on the circuit board

Triggered externally by supplying a pulse to the signal pin

5V DC Supply voltage

Current - <20mA

Bidirectional TTL pulse interface on a single I/O pin can communicate with 5 V TTL or 3.3V CMOS microcontrollers

Echo pulse: positive TTL pulse, 87 µs minimum to 30 ms maximum(PWM)

On Board Burst LED Indicatorshows measurement in progress

3-pin header makes it easy to connect using a servo extension cable, no soldering required

Circuit Diagram

Code

Videos

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